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Finding the Fourth Proportional to 302,545.60, 453,818.40 and 103,091.20

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Solution

The fourth proportional to 302,545.60, 453,818.40 and 103,091.20 is: 154,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,545.60 : 453,818.40 = 103,091.20 : x
  2. Step 2: Convert to fraction form
    302,545.60/453,818.40 = 103,091.20/x
  3. Step 3: Cross multiply
    302,545.60x = 453,818.40 × 103,091.20
  4. Step 4: Simplify right side
    302,545.60x = 46,784,683,438.08
  5. Step 5: Solve for x
    x = 46,784,683,438.08/302,545.60
  6. Step 6: Final answer
    x = 154,636.80

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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.