Home / 318,155.52-477,579.09-128,746.29

Finding the Fourth Proportional to 318,155.52, 477,579.09 and 128,746.29

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Solution

The fourth proportional to 318,155.52, 477,579.09 and 128,746.29 is: 193,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,155.52 : 477,579.09 = 128,746.29 : x
  2. Step 2: Convert to fraction form
    318,155.52/477,579.09 = 128,746.29/x
  3. Step 3: Cross multiply
    318,155.52x = 477,579.09 × 128,746.29
  4. Step 4: Simplify right side
    318,155.52x = 61,486,536,019.08
  5. Step 5: Solve for x
    x = 61,486,536,019.08/318,155.52
  6. Step 6: Final answer
    x = 193,259.37

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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.