Home / 401,312.12-553,817-240,173.96

Finding the Fourth Proportional to 401,312.12, 553,817 and 240,173.96

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Solution

The fourth proportional to 401,312.12, 553,817 and 240,173.96 is: 331,443.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,312.12 : 553,817 = 240,173.96 : x
  2. Step 2: Convert to fraction form
    401,312.12/553,817 = 240,173.96/x
  3. Step 3: Cross multiply
    401,312.12x = 553,817 × 240,173.96
  4. Step 4: Simplify right side
    401,312.12x = 133,012,422,005.32
  5. Step 5: Solve for x
    x = 133,012,422,005.32/401,312.12
  6. Step 6: Final answer
    x = 331,443.82

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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.