Home / 215,434.08-297,315.12-124,814.40

Finding the Fourth Proportional to 215,434.08, 297,315.12 and 124,814.40

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Solution

The fourth proportional to 215,434.08, 297,315.12 and 124,814.40 is: 172,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,434.08 : 297,315.12 = 124,814.40 : x
  2. Step 2: Convert to fraction form
    215,434.08/297,315.12 = 124,814.40/x
  3. Step 3: Cross multiply
    215,434.08x = 297,315.12 × 124,814.40
  4. Step 4: Simplify right side
    215,434.08x = 37,109,208,313.73
  5. Step 5: Solve for x
    x = 37,109,208,313.73/215,434.08
  6. Step 6: Final answer
    x = 172,253.19

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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.