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Finding the Fourth Proportional to 303,528, 418,875.36 and 167,561.64

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Solution

The fourth proportional to 303,528, 418,875.36 and 167,561.64 is: 231,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,528 : 418,875.36 = 167,561.64 : x
  2. Step 2: Convert to fraction form
    303,528/418,875.36 = 167,561.64/x
  3. Step 3: Cross multiply
    303,528x = 418,875.36 × 167,561.64
  4. Step 4: Simplify right side
    303,528x = 70,187,442,277.19
  5. Step 5: Solve for x
    x = 70,187,442,277.19/303,528
  6. Step 6: Final answer
    x = 231,238.77

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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.