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Finding the Fourth Proportional to 390,690, 586,037.88 and 95,202

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Solution

The fourth proportional to 390,690, 586,037.88 and 95,202 is: 142,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,690 : 586,037.88 = 95,202 : x
  2. Step 2: Convert to fraction form
    390,690/586,037.88 = 95,202/x
  3. Step 3: Cross multiply
    390,690x = 586,037.88 × 95,202
  4. Step 4: Simplify right side
    390,690x = 55,791,978,251.76
  5. Step 5: Solve for x
    x = 55,791,978,251.76/390,690
  6. Step 6: Final answer
    x = 142,803.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.