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Finding the Fourth Proportional to 302,353.60, 453,530.40 and 207,875.20

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Solution

The fourth proportional to 302,353.60, 453,530.40 and 207,875.20 is: 311,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,353.60 : 453,530.40 = 207,875.20 : x
  2. Step 2: Convert to fraction form
    302,353.60/453,530.40 = 207,875.20/x
  3. Step 3: Cross multiply
    302,353.60x = 453,530.40 × 207,875.20
  4. Step 4: Simplify right side
    302,353.60x = 94,277,722,606.08
  5. Step 5: Solve for x
    x = 94,277,722,606.08/302,353.60
  6. Step 6: Final answer
    x = 311,812.80

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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.