Home / 320,426.55-442,187.51-180,714.06

Finding the Fourth Proportional to 320,426.55, 442,187.51 and 180,714.06

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Solution

The fourth proportional to 320,426.55, 442,187.51 and 180,714.06 is: 249,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,426.55 : 442,187.51 = 180,714.06 : x
  2. Step 2: Convert to fraction form
    320,426.55/442,187.51 = 180,714.06/x
  3. Step 3: Cross multiply
    320,426.55x = 442,187.51 × 180,714.06
  4. Step 4: Simplify right side
    320,426.55x = 79,909,499,309.82
  5. Step 5: Solve for x
    x = 79,909,499,309.82/320,426.55
  6. Step 6: Final answer
    x = 249,384.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.