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Finding the Fourth Proportional to 424,840.22, 586,210.90 and 243,518.78

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Solution

The fourth proportional to 424,840.22, 586,210.90 and 243,518.78 is: 336,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,840.22 : 586,210.90 = 243,518.78 : x
  2. Step 2: Convert to fraction form
    424,840.22/586,210.90 = 243,518.78/x
  3. Step 3: Cross multiply
    424,840.22x = 586,210.90 × 243,518.78
  4. Step 4: Simplify right side
    424,840.22x = 142,753,364,656.23
  5. Step 5: Solve for x
    x = 142,753,364,656.23/424,840.22
  6. Step 6: Final answer
    x = 336,016.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.