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Finding the Fourth Proportional to 319,156.37, 440,430.53 and 175,929.74

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Solution

The fourth proportional to 319,156.37, 440,430.53 and 175,929.74 is: 242,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,156.37 : 440,430.53 = 175,929.74 : x
  2. Step 2: Convert to fraction form
    319,156.37/440,430.53 = 175,929.74/x
  3. Step 3: Cross multiply
    319,156.37x = 440,430.53 × 175,929.74
  4. Step 4: Simplify right side
    319,156.37x = 77,484,830,171.86
  5. Step 5: Solve for x
    x = 77,484,830,171.86/319,156.37
  6. Step 6: Final answer
    x = 242,780.14

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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.