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Finding the Fourth Proportional to 253,501.74, 349,808.76 and 151,507.08

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Solution

The fourth proportional to 253,501.74, 349,808.76 and 151,507.08 is: 209,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,501.74 : 349,808.76 = 151,507.08 : x
  2. Step 2: Convert to fraction form
    253,501.74/349,808.76 = 151,507.08/x
  3. Step 3: Cross multiply
    253,501.74x = 349,808.76 × 151,507.08
  4. Step 4: Simplify right side
    253,501.74x = 52,998,503,786.02
  5. Step 5: Solve for x
    x = 52,998,503,786.02/253,501.74
  6. Step 6: Final answer
    x = 209,065.64

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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.