Home / 242,708.21-334,938.88-135,285.05

Finding the Fourth Proportional to 242,708.21, 334,938.88 and 135,285.05

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Solution

The fourth proportional to 242,708.21, 334,938.88 and 135,285.05 is: 186,694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,708.21 : 334,938.88 = 135,285.05 : x
  2. Step 2: Convert to fraction form
    242,708.21/334,938.88 = 135,285.05/x
  3. Step 3: Cross multiply
    242,708.21x = 334,938.88 × 135,285.05
  4. Step 4: Simplify right side
    242,708.21x = 45,312,223,127.74
  5. Step 5: Solve for x
    x = 45,312,223,127.74/242,708.21
  6. Step 6: Final answer
    x = 186,694.23

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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.