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Finding the Fourth Proportional to 506,345.40, 758,643.30 and 239,531.40

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Solution

The fourth proportional to 506,345.40, 758,643.30 and 239,531.40 is: 358,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,345.40 : 758,643.30 = 239,531.40 : x
  2. Step 2: Convert to fraction form
    506,345.40/758,643.30 = 239,531.40/x
  3. Step 3: Cross multiply
    506,345.40x = 758,643.30 × 239,531.40
  4. Step 4: Simplify right side
    506,345.40x = 181,718,891,749.62
  5. Step 5: Solve for x
    x = 181,718,891,749.62/506,345.40
  6. Step 6: Final answer
    x = 358,883.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.