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Finding the Fourth Proportional to 224,740.40, 310,142.80 and 122,767.28

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Solution

The fourth proportional to 224,740.40, 310,142.80 and 122,767.28 is: 169,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,740.40 : 310,142.80 = 122,767.28 : x
  2. Step 2: Convert to fraction form
    224,740.40/310,142.80 = 122,767.28/x
  3. Step 3: Cross multiply
    224,740.40x = 310,142.80 × 122,767.28
  4. Step 4: Simplify right side
    224,740.40x = 38,075,387,967.58
  5. Step 5: Solve for x
    x = 38,075,387,967.58/224,740.40
  6. Step 6: Final answer
    x = 169,419.42

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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.