Home / 319,521.68-440,941.46-176,281.72

Finding the Fourth Proportional to 319,521.68, 440,941.46 and 176,281.72

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Solution

The fourth proportional to 319,521.68, 440,941.46 and 176,281.72 is: 243,269.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,521.68 : 440,941.46 = 176,281.72 : x
  2. Step 2: Convert to fraction form
    319,521.68/440,941.46 = 176,281.72/x
  3. Step 3: Cross multiply
    319,521.68x = 440,941.46 × 176,281.72
  4. Step 4: Simplify right side
    319,521.68x = 77,729,918,988.11
  5. Step 5: Solve for x
    x = 77,729,918,988.11/319,521.68
  6. Step 6: Final answer
    x = 243,269.62

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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.