Home / 215,435.08-297,316.50-124,815.40

Finding the Fourth Proportional to 215,435.08, 297,316.50 and 124,815.40

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Solution

The fourth proportional to 215,435.08, 297,316.50 and 124,815.40 is: 172,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,435.08 : 297,316.50 = 124,815.40 : x
  2. Step 2: Convert to fraction form
    215,435.08/297,316.50 = 124,815.40/x
  3. Step 3: Cross multiply
    215,435.08x = 297,316.50 × 124,815.40
  4. Step 4: Simplify right side
    215,435.08x = 37,109,677,874.10
  5. Step 5: Solve for x
    x = 37,109,677,874.10/215,435.08
  6. Step 6: Final answer
    x = 172,254.57

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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.