Home / 319,070.50-440,320.18-175,835.68

Finding the Fourth Proportional to 319,070.50, 440,320.18 and 175,835.68

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Solution

The fourth proportional to 319,070.50, 440,320.18 and 175,835.68 is: 242,654.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,070.50 : 440,320.18 = 175,835.68 : x
  2. Step 2: Convert to fraction form
    319,070.50/440,320.18 = 175,835.68/x
  3. Step 3: Cross multiply
    319,070.50x = 440,320.18 × 175,835.68
  4. Step 4: Simplify right side
    319,070.50x = 77,423,998,268.02
  5. Step 5: Solve for x
    x = 77,423,998,268.02/319,070.50
  6. Step 6: Final answer
    x = 242,654.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.