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Finding the Fourth Proportional to 288,046.40, 432,069.60 and 253,054.40

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Solution

The fourth proportional to 288,046.40, 432,069.60 and 253,054.40 is: 379,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,046.40 : 432,069.60 = 253,054.40 : x
  2. Step 2: Convert to fraction form
    288,046.40/432,069.60 = 253,054.40/x
  3. Step 3: Cross multiply
    288,046.40x = 432,069.60 × 253,054.40
  4. Step 4: Simplify right side
    288,046.40x = 109,337,113,386.24
  5. Step 5: Solve for x
    x = 109,337,113,386.24/288,046.40
  6. Step 6: Final answer
    x = 379,581.60

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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.