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Finding the Fourth Proportional to 610,547.91, 915,865.60 and 161,264.31

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Solution

The fourth proportional to 610,547.91, 915,865.60 and 161,264.31 is: 241,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,547.91 : 915,865.60 = 161,264.31 : x
  2. Step 2: Convert to fraction form
    610,547.91/915,865.60 = 161,264.31/x
  3. Step 3: Cross multiply
    610,547.91x = 915,865.60 × 161,264.31
  4. Step 4: Simplify right side
    610,547.91x = 147,696,434,036.74
  5. Step 5: Solve for x
    x = 147,696,434,036.74/610,547.91
  6. Step 6: Final answer
    x = 241,908.02

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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.