Home / 280,925.25-387,676.98-153,601.89

Finding the Fourth Proportional to 280,925.25, 387,676.98 and 153,601.89

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Solution

The fourth proportional to 280,925.25, 387,676.98 and 153,601.89 is: 211,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,925.25 : 387,676.98 = 153,601.89 : x
  2. Step 2: Convert to fraction form
    280,925.25/387,676.98 = 153,601.89/x
  3. Step 3: Cross multiply
    280,925.25x = 387,676.98 × 153,601.89
  4. Step 4: Simplify right side
    280,925.25x = 59,547,916,837.49
  5. Step 5: Solve for x
    x = 59,547,916,837.49/280,925.25
  6. Step 6: Final answer
    x = 211,970.68

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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.