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Finding the Fourth Proportional to 390,752.95, 586,111.82 and 162,954.76

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Solution

The fourth proportional to 390,752.95, 586,111.82 and 162,954.76 is: 244,424.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,752.95 : 586,111.82 = 162,954.76 : x
  2. Step 2: Convert to fraction form
    390,752.95/586,111.82 = 162,954.76/x
  3. Step 3: Cross multiply
    390,752.95x = 586,111.82 × 162,954.76
  4. Step 4: Simplify right side
    390,752.95x = 95,509,710,146.49
  5. Step 5: Solve for x
    x = 95,509,710,146.49/390,752.95
  6. Step 6: Final answer
    x = 244,424.80

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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.