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Finding the Fourth Proportional to 353,475.52, 487,635.06 and 210,154.12

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Solution

The fourth proportional to 353,475.52, 487,635.06 and 210,154.12 is: 289,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,475.52 : 487,635.06 = 210,154.12 : x
  2. Step 2: Convert to fraction form
    353,475.52/487,635.06 = 210,154.12/x
  3. Step 3: Cross multiply
    353,475.52x = 487,635.06 × 210,154.12
  4. Step 4: Simplify right side
    353,475.52x = 102,478,516,915.45
  5. Step 5: Solve for x
    x = 102,478,516,915.45/353,475.52
  6. Step 6: Final answer
    x = 289,916.87

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1.5x scale

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.