Home / 206,211.74-284,558.73-121,312.40

Finding the Fourth Proportional to 206,211.74, 284,558.73 and 121,312.40

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Solution

The fourth proportional to 206,211.74, 284,558.73 and 121,312.40 is: 167,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,211.74 : 284,558.73 = 121,312.40 : x
  2. Step 2: Convert to fraction form
    206,211.74/284,558.73 = 121,312.40/x
  3. Step 3: Cross multiply
    206,211.74x = 284,558.73 × 121,312.40
  4. Step 4: Simplify right side
    206,211.74x = 34,520,502,477.25
  5. Step 5: Solve for x
    x = 34,520,502,477.25/206,211.74
  6. Step 6: Final answer
    x = 167,403.19

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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.