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Finding the Fourth Proportional to 292,488.76, 438,897.10 and 159,378.28

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Solution

The fourth proportional to 292,488.76, 438,897.10 and 159,378.28 is: 239,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,488.76 : 438,897.10 = 159,378.28 : x
  2. Step 2: Convert to fraction form
    292,488.76/438,897.10 = 159,378.28/x
  3. Step 3: Cross multiply
    292,488.76x = 438,897.10 × 159,378.28
  4. Step 4: Simplify right side
    292,488.76x = 69,950,664,894.99
  5. Step 5: Solve for x
    x = 69,950,664,894.99/292,488.76
  6. Step 6: Final answer
    x = 239,156.76

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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.