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Finding the Fourth Proportional to 313,127, 432,116.34 and 169,887.68

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Solution

The fourth proportional to 313,127, 432,116.34 and 169,887.68 is: 234,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,127 : 432,116.34 = 169,887.68 : x
  2. Step 2: Convert to fraction form
    313,127/432,116.34 = 169,887.68/x
  3. Step 3: Cross multiply
    313,127x = 432,116.34 × 169,887.68
  4. Step 4: Simplify right side
    313,127x = 73,411,242,492.69
  5. Step 5: Solve for x
    x = 73,411,242,492.69/313,127
  6. Step 6: Final answer
    x = 234,445.58

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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.