Home / 266,275.51-367,463.12-145,420.35

Finding the Fourth Proportional to 266,275.51, 367,463.12 and 145,420.35

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Solution

The fourth proportional to 266,275.51, 367,463.12 and 145,420.35 is: 200,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,275.51 : 367,463.12 = 145,420.35 : x
  2. Step 2: Convert to fraction form
    266,275.51/367,463.12 = 145,420.35/x
  3. Step 3: Cross multiply
    266,275.51x = 367,463.12 × 145,420.35
  4. Step 4: Simplify right side
    266,275.51x = 53,436,615,886.04
  5. Step 5: Solve for x
    x = 53,436,615,886.04/266,275.51
  6. Step 6: Final answer
    x = 200,681.68

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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.