Home / 280,788.76-387,482.73-153,465.26

Finding the Fourth Proportional to 280,788.76, 387,482.73 and 153,465.26

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Solution

The fourth proportional to 280,788.76, 387,482.73 and 153,465.26 is: 211,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,788.76 : 387,482.73 = 153,465.26 : x
  2. Step 2: Convert to fraction form
    280,788.76/387,482.73 = 153,465.26/x
  3. Step 3: Cross multiply
    280,788.76x = 387,482.73 × 153,465.26
  4. Step 4: Simplify right side
    280,788.76x = 59,465,137,904.96
  5. Step 5: Solve for x
    x = 59,465,137,904.96/280,788.76
  6. Step 6: Final answer
    x = 211,778.92

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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.