Home / 286,228.68-429,539.86-99,240.18

Finding the Fourth Proportional to 286,228.68, 429,539.86 and 99,240.18

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Solution

The fourth proportional to 286,228.68, 429,539.86 and 99,240.18 is: 148,928.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,228.68 : 429,539.86 = 99,240.18 : x
  2. Step 2: Convert to fraction form
    286,228.68/429,539.86 = 99,240.18/x
  3. Step 3: Cross multiply
    286,228.68x = 429,539.86 × 99,240.18
  4. Step 4: Simplify right side
    286,228.68x = 42,627,613,023.57
  5. Step 5: Solve for x
    x = 42,627,613,023.57/286,228.68
  6. Step 6: Final answer
    x = 148,928.52

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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.