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Finding the Fourth Proportional to 359,264.80, 538,897.20 and 353,120.80

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Solution

The fourth proportional to 359,264.80, 538,897.20 and 353,120.80 is: 529,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,264.80 : 538,897.20 = 353,120.80 : x
  2. Step 2: Convert to fraction form
    359,264.80/538,897.20 = 353,120.80/x
  3. Step 3: Cross multiply
    359,264.80x = 538,897.20 × 353,120.80
  4. Step 4: Simplify right side
    359,264.80x = 190,295,810,381.76
  5. Step 5: Solve for x
    x = 190,295,810,381.76/359,264.80
  6. Step 6: Final answer
    x = 529,681.20

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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.