Home / 346,423.20-519,634.80-288,103.20

Finding the Fourth Proportional to 346,423.20, 519,634.80 and 288,103.20

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Solution

The fourth proportional to 346,423.20, 519,634.80 and 288,103.20 is: 432,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,423.20 : 519,634.80 = 288,103.20 : x
  2. Step 2: Convert to fraction form
    346,423.20/519,634.80 = 288,103.20/x
  3. Step 3: Cross multiply
    346,423.20x = 519,634.80 × 288,103.20
  4. Step 4: Simplify right side
    346,423.20x = 149,708,448,711.36
  5. Step 5: Solve for x
    x = 149,708,448,711.36/346,423.20
  6. Step 6: Final answer
    x = 432,154.80

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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.