Home / 401,271.40-553,777.12-238,024.71

Finding the Fourth Proportional to 401,271.40, 553,777.12 and 238,024.71

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Solution

The fourth proportional to 401,271.40, 553,777.12 and 238,024.71 is: 328,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,271.40 : 553,777.12 = 238,024.71 : x
  2. Step 2: Convert to fraction form
    401,271.40/553,777.12 = 238,024.71/x
  3. Step 3: Cross multiply
    401,271.40x = 553,777.12 × 238,024.71
  4. Step 4: Simplify right side
    401,271.40x = 131,812,638,690.17
  5. Step 5: Solve for x
    x = 131,812,638,690.17/401,271.40
  6. Step 6: Final answer
    x = 328,487.50

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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.