Home / 387,345.15-581,017.73-235,786.05

Finding the Fourth Proportional to 387,345.15, 581,017.73 and 235,786.05

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Solution

The fourth proportional to 387,345.15, 581,017.73 and 235,786.05 is: 353,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,345.15 : 581,017.73 = 235,786.05 : x
  2. Step 2: Convert to fraction form
    387,345.15/581,017.73 = 235,786.05/x
  3. Step 3: Cross multiply
    387,345.15x = 581,017.73 × 235,786.05
  4. Step 4: Simplify right side
    387,345.15x = 136,995,874,357.74
  5. Step 5: Solve for x
    x = 136,995,874,357.74/387,345.15
  6. Step 6: Final answer
    x = 353,679.08

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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.