Home / 286,613.30-429,990.39-142,587.14

Finding the Fourth Proportional to 286,613.30, 429,990.39 and 142,587.14

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Solution

The fourth proportional to 286,613.30, 429,990.39 and 142,587.14 is: 213,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,613.30 : 429,990.39 = 142,587.14 : x
  2. Step 2: Convert to fraction form
    286,613.30/429,990.39 = 142,587.14/x
  3. Step 3: Cross multiply
    286,613.30x = 429,990.39 × 142,587.14
  4. Step 4: Simplify right side
    286,613.30x = 61,311,097,787.63
  5. Step 5: Solve for x
    x = 61,311,097,787.63/286,613.30
  6. Step 6: Final answer
    x = 213,915.74

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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.