Home / 205,541.90-308,312.85-149,117.30

Finding the Fourth Proportional to 205,541.90, 308,312.85 and 149,117.30

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Solution

The fourth proportional to 205,541.90, 308,312.85 and 149,117.30 is: 223,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,541.90 : 308,312.85 = 149,117.30 : x
  2. Step 2: Convert to fraction form
    205,541.90/308,312.85 = 149,117.30/x
  3. Step 3: Cross multiply
    205,541.90x = 308,312.85 × 149,117.30
  4. Step 4: Simplify right side
    205,541.90x = 45,974,779,747.31
  5. Step 5: Solve for x
    x = 45,974,779,747.31/205,541.90
  6. Step 6: Final answer
    x = 223,675.95

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1.5x scale

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.