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Finding the Fourth Proportional to 238,990.71, 358,362.55 and 70,489.59

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Solution

The fourth proportional to 238,990.71, 358,362.55 and 70,489.59 is: 105,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,990.71 : 358,362.55 = 70,489.59 : x
  2. Step 2: Convert to fraction form
    238,990.71/358,362.55 = 70,489.59/x
  3. Step 3: Cross multiply
    238,990.71x = 358,362.55 × 70,489.59
  4. Step 4: Simplify right side
    238,990.71x = 25,260,829,220.85
  5. Step 5: Solve for x
    x = 25,260,829,220.85/238,990.71
  6. Step 6: Final answer
    x = 105,697.95

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1.5x scale

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.