Home / 288,522.10-432,783.15-75,289.60

Finding the Fourth Proportional to 288,522.10, 432,783.15 and 75,289.60

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Solution

The fourth proportional to 288,522.10, 432,783.15 and 75,289.60 is: 112,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,522.10 : 432,783.15 = 75,289.60 : x
  2. Step 2: Convert to fraction form
    288,522.10/432,783.15 = 75,289.60/x
  3. Step 3: Cross multiply
    288,522.10x = 432,783.15 × 75,289.60
  4. Step 4: Simplify right side
    288,522.10x = 32,584,070,250.24
  5. Step 5: Solve for x
    x = 32,584,070,250.24/288,522.10
  6. Step 6: Final answer
    x = 112,934.40

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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.