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Finding the Fourth Proportional to 359,271.20, 537,985.20 and 342,682.40

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Solution

The fourth proportional to 359,271.20, 537,985.20 and 342,682.40 is: 513,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,271.20 : 537,985.20 = 342,682.40 : x
  2. Step 2: Convert to fraction form
    359,271.20/537,985.20 = 342,682.40/x
  3. Step 3: Cross multiply
    359,271.20x = 537,985.20 × 342,682.40
  4. Step 4: Simplify right side
    359,271.20x = 184,358,059,500.48
  5. Step 5: Solve for x
    x = 184,358,059,500.48/359,271.20
  6. Step 6: Final answer
    x = 513,144.55

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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.