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Finding the Fourth Proportional to 302,437.60, 453,656.40 and 207,959.20

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Solution

The fourth proportional to 302,437.60, 453,656.40 and 207,959.20 is: 311,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,437.60 : 453,656.40 = 207,959.20 : x
  2. Step 2: Convert to fraction form
    302,437.60/453,656.40 = 207,959.20/x
  3. Step 3: Cross multiply
    302,437.60x = 453,656.40 × 207,959.20
  4. Step 4: Simplify right side
    302,437.60x = 94,342,022,018.88
  5. Step 5: Solve for x
    x = 94,342,022,018.88/302,437.60
  6. Step 6: Final answer
    x = 311,938.80

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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.