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Finding the Fourth Proportional to 340,838.60, 510,873.90 and 163,430.60

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Solution

The fourth proportional to 340,838.60, 510,873.90 and 163,430.60 is: 244,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,838.60 : 510,873.90 = 163,430.60 : x
  2. Step 2: Convert to fraction form
    340,838.60/510,873.90 = 163,430.60/x
  3. Step 3: Cross multiply
    340,838.60x = 510,873.90 × 163,430.60
  4. Step 4: Simplify right side
    340,838.60x = 83,492,428,001.34
  5. Step 5: Solve for x
    x = 83,492,428,001.34/340,838.60
  6. Step 6: Final answer
    x = 244,961.77

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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.