Home / 282,869.76-390,363.06-155,546.28

Finding the Fourth Proportional to 282,869.76, 390,363.06 and 155,546.28

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Solution

The fourth proportional to 282,869.76, 390,363.06 and 155,546.28 is: 214,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,869.76 : 390,363.06 = 155,546.28 : x
  2. Step 2: Convert to fraction form
    282,869.76/390,363.06 = 155,546.28/x
  3. Step 3: Cross multiply
    282,869.76x = 390,363.06 × 155,546.28
  4. Step 4: Simplify right side
    282,869.76x = 60,719,521,832.42
  5. Step 5: Solve for x
    x = 60,719,521,832.42/282,869.76
  6. Step 6: Final answer
    x = 214,655.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.