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Finding the Fourth Proportional to 301,841.40, 452,762.10 and 279,031.80

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Solution

The fourth proportional to 301,841.40, 452,762.10 and 279,031.80 is: 418,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,841.40 : 452,762.10 = 279,031.80 : x
  2. Step 2: Convert to fraction form
    301,841.40/452,762.10 = 279,031.80/x
  3. Step 3: Cross multiply
    301,841.40x = 452,762.10 × 279,031.80
  4. Step 4: Simplify right side
    301,841.40x = 126,335,023,734.78
  5. Step 5: Solve for x
    x = 126,335,023,734.78/301,841.40
  6. Step 6: Final answer
    x = 418,547.70

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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.