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Finding the Fourth Proportional to 440,682.50, 608,146.72 and 239,478.50

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Solution

The fourth proportional to 440,682.50, 608,146.72 and 239,478.50 is: 330,482.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,682.50 : 608,146.72 = 239,478.50 : x
  2. Step 2: Convert to fraction form
    440,682.50/608,146.72 = 239,478.50/x
  3. Step 3: Cross multiply
    440,682.50x = 608,146.72 × 239,478.50
  4. Step 4: Simplify right side
    440,682.50x = 145,638,064,285.52
  5. Step 5: Solve for x
    x = 145,638,064,285.52/440,682.50
  6. Step 6: Final answer
    x = 330,482.98

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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.