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Finding the Fourth Proportional to 157,506, 236,259 and 40,770

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Solution

The fourth proportional to 157,506, 236,259 and 40,770 is: 61,155

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,506 : 236,259 = 40,770 : x
  2. Step 2: Convert to fraction form
    157,506/236,259 = 40,770/x
  3. Step 3: Cross multiply
    157,506x = 236,259 × 40,770
  4. Step 4: Simplify right side
    157,506x = 9,632,279,430
  5. Step 5: Solve for x
    x = 9,632,279,430/157,506
  6. Step 6: Final answer
    x = 61,155

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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.