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Finding the Fourth Proportional to 288,642.88, 432,809.61 and 144,526.06

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Solution

The fourth proportional to 288,642.88, 432,809.61 and 144,526.06 is: 216,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,642.88 : 432,809.61 = 144,526.06 : x
  2. Step 2: Convert to fraction form
    288,642.88/432,809.61 = 144,526.06/x
  3. Step 3: Cross multiply
    288,642.88x = 432,809.61 × 144,526.06
  4. Step 4: Simplify right side
    288,642.88x = 62,552,267,663.44
  5. Step 5: Solve for x
    x = 62,552,267,663.44/288,642.88
  6. Step 6: Final answer
    x = 216,711.63

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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.