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Finding the Fourth Proportional to 242,685.54, 334,907.71 and 135,262.49

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Solution

The fourth proportional to 242,685.54, 334,907.71 and 135,262.49 is: 186,663.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,685.54 : 334,907.71 = 135,262.49 : x
  2. Step 2: Convert to fraction form
    242,685.54/334,907.71 = 135,262.49/x
  3. Step 3: Cross multiply
    242,685.54x = 334,907.71 × 135,262.49
  4. Step 4: Simplify right side
    242,685.54x = 45,300,448,762.10
  5. Step 5: Solve for x
    x = 45,300,448,762.10/242,685.54
  6. Step 6: Final answer
    x = 186,663.16

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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.