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Finding the Fourth Proportional to 495,278.16, 742,920.48 and 121,301.16

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Solution

The fourth proportional to 495,278.16, 742,920.48 and 121,301.16 is: 181,952.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,278.16 : 742,920.48 = 121,301.16 : x
  2. Step 2: Convert to fraction form
    495,278.16/742,920.48 = 121,301.16/x
  3. Step 3: Cross multiply
    495,278.16x = 742,920.48 × 121,301.16
  4. Step 4: Simplify right side
    495,278.16x = 90,117,116,011.76
  5. Step 5: Solve for x
    x = 90,117,116,011.76/495,278.16
  6. Step 6: Final answer
    x = 181,952.53

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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.