Home / 215,501.10-297,579.54-135,066.90

Finding the Fourth Proportional to 215,501.10, 297,579.54 and 135,066.90

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Solution

The fourth proportional to 215,501.10, 297,579.54 and 135,066.90 is: 186,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,501.10 : 297,579.54 = 135,066.90 : x
  2. Step 2: Convert to fraction form
    215,501.10/297,579.54 = 135,066.90/x
  3. Step 3: Cross multiply
    215,501.10x = 297,579.54 × 135,066.90
  4. Step 4: Simplify right side
    215,501.10x = 40,193,145,971.23
  5. Step 5: Solve for x
    x = 40,193,145,971.23/215,501.10
  6. Step 6: Final answer
    x = 186,510.17

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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.