Home / 356,603.28-492,162.94-220,681.00

Finding the Fourth Proportional to 356,603.28, 492,162.94 and 220,681.00

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Solution

The fourth proportional to 356,603.28, 492,162.94 and 220,681.00 is: 304,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,603.28 : 492,162.94 = 220,681.00 : x
  2. Step 2: Convert to fraction form
    356,603.28/492,162.94 = 220,681.00/x
  3. Step 3: Cross multiply
    356,603.28x = 492,162.94 × 220,681.00
  4. Step 4: Simplify right side
    356,603.28x = 108,611,009,065.82
  5. Step 5: Solve for x
    x = 108,611,009,065.82/356,603.28
  6. Step 6: Final answer
    x = 304,570.98

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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.