Home / 282,861.02-390,337.59-155,529.02

Finding the Fourth Proportional to 282,861.02, 390,337.59 and 155,529.02

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Solution

The fourth proportional to 282,861.02, 390,337.59 and 155,529.02 is: 214,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,861.02 : 390,337.59 = 155,529.02 : x
  2. Step 2: Convert to fraction form
    282,861.02/390,337.59 = 155,529.02/x
  3. Step 3: Cross multiply
    282,861.02x = 390,337.59 × 155,529.02
  4. Step 4: Simplify right side
    282,861.02x = 60,708,822,841.86
  5. Step 5: Solve for x
    x = 60,708,822,841.86/282,861.02
  6. Step 6: Final answer
    x = 214,624.21

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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.