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Finding the Fourth Proportional to 440,368.92, 607,712.22 and 239,164.92

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Solution

The fourth proportional to 440,368.92, 607,712.22 and 239,164.92 is: 330,049.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,368.92 : 607,712.22 = 239,164.92 : x
  2. Step 2: Convert to fraction form
    440,368.92/607,712.22 = 239,164.92/x
  3. Step 3: Cross multiply
    440,368.92x = 607,712.22 × 239,164.92
  4. Step 4: Simplify right side
    440,368.92x = 145,343,444,479.32
  5. Step 5: Solve for x
    x = 145,343,444,479.32/440,368.92
  6. Step 6: Final answer
    x = 330,049.28

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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.