Home / 387,299.04-534,409.86-242,087.64

Finding the Fourth Proportional to 387,299.04, 534,409.86 and 242,087.64

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Solution

The fourth proportional to 387,299.04, 534,409.86 and 242,087.64 is: 334,041.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,299.04 : 534,409.86 = 242,087.64 : x
  2. Step 2: Convert to fraction form
    387,299.04/534,409.86 = 242,087.64/x
  3. Step 3: Cross multiply
    387,299.04x = 534,409.86 × 242,087.64
  4. Step 4: Simplify right side
    387,299.04x = 129,374,021,800.13
  5. Step 5: Solve for x
    x = 129,374,021,800.13/387,299.04
  6. Step 6: Final answer
    x = 334,041.68

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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.