Home / 387,746.16-581,618.36-121,526.96

Finding the Fourth Proportional to 387,746.16, 581,618.36 and 121,526.96

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Solution

The fourth proportional to 387,746.16, 581,618.36 and 121,526.96 is: 182,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,746.16 : 581,618.36 = 121,526.96 : x
  2. Step 2: Convert to fraction form
    387,746.16/581,618.36 = 121,526.96/x
  3. Step 3: Cross multiply
    387,746.16x = 581,618.36 × 121,526.96
  4. Step 4: Simplify right side
    387,746.16x = 70,682,311,170.99
  5. Step 5: Solve for x
    x = 70,682,311,170.99/387,746.16
  6. Step 6: Final answer
    x = 182,290.16

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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.