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Finding the Fourth Proportional to 289,785.55, 434,371.53 and 97,476.90

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Solution

The fourth proportional to 289,785.55, 434,371.53 and 97,476.90 is: 146,112.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,785.55 : 434,371.53 = 97,476.90 : x
  2. Step 2: Convert to fraction form
    289,785.55/434,371.53 = 97,476.90/x
  3. Step 3: Cross multiply
    289,785.55x = 434,371.53 × 97,476.90
  4. Step 4: Simplify right side
    289,785.55x = 42,341,190,558.20
  5. Step 5: Solve for x
    x = 42,341,190,558.20/289,785.55
  6. Step 6: Final answer
    x = 146,112.15

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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.