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Finding the Fourth Proportional to 302,646.30, 453,969.45 and 81,030.30

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Solution

The fourth proportional to 302,646.30, 453,969.45 and 81,030.30 is: 121,545.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,646.30 : 453,969.45 = 81,030.30 : x
  2. Step 2: Convert to fraction form
    302,646.30/453,969.45 = 81,030.30/x
  3. Step 3: Cross multiply
    302,646.30x = 453,969.45 × 81,030.30
  4. Step 4: Simplify right side
    302,646.30x = 36,785,280,724.34
  5. Step 5: Solve for x
    x = 36,785,280,724.34/302,646.30
  6. Step 6: Final answer
    x = 121,545.45

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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.