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Finding the Fourth Proportional to 440,007.20, 607,210.19 and 238,803.20

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Solution

The fourth proportional to 440,007.20, 607,210.19 and 238,803.20 is: 329,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,007.20 : 607,210.19 = 238,803.20 : x
  2. Step 2: Convert to fraction form
    440,007.20/607,210.19 = 238,803.20/x
  3. Step 3: Cross multiply
    440,007.20x = 607,210.19 × 238,803.20
  4. Step 4: Simplify right side
    440,007.20x = 145,003,732,214.54
  5. Step 5: Solve for x
    x = 145,003,732,214.54/440,007.20
  6. Step 6: Final answer
    x = 329,548.55

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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.