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Finding the Fourth Proportional to 210,301.60, 290,220.60 and 114,812.32

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Solution

The fourth proportional to 210,301.60, 290,220.60 and 114,812.32 is: 158,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,301.60 : 290,220.60 = 114,812.32 : x
  2. Step 2: Convert to fraction form
    210,301.60/290,220.60 = 114,812.32/x
  3. Step 3: Cross multiply
    210,301.60x = 290,220.60 × 114,812.32
  4. Step 4: Simplify right side
    210,301.60x = 33,320,900,397.79
  5. Step 5: Solve for x
    x = 33,320,900,397.79/210,301.60
  6. Step 6: Final answer
    x = 158,443.40

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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.