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Finding the Fourth Proportional to 286,725.30, 429,569.55 and 245,253.30

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Solution

The fourth proportional to 286,725.30, 429,569.55 and 245,253.30 is: 367,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,725.30 : 429,569.55 = 245,253.30 : x
  2. Step 2: Convert to fraction form
    286,725.30/429,569.55 = 245,253.30/x
  3. Step 3: Cross multiply
    286,725.30x = 429,569.55 × 245,253.30
  4. Step 4: Simplify right side
    286,725.30x = 105,353,349,717.02
  5. Step 5: Solve for x
    x = 105,353,349,717.02/286,725.30
  6. Step 6: Final answer
    x = 367,436.53

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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.