Home / 282,762.22-390,208.71-153,697.90

Finding the Fourth Proportional to 282,762.22, 390,208.71 and 153,697.90

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Solution

The fourth proportional to 282,762.22, 390,208.71 and 153,697.90 is: 212,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,762.22 : 390,208.71 = 153,697.90 : x
  2. Step 2: Convert to fraction form
    282,762.22/390,208.71 = 153,697.90/x
  3. Step 3: Cross multiply
    282,762.22x = 390,208.71 × 153,697.90
  4. Step 4: Simplify right side
    282,762.22x = 59,974,259,288.71
  5. Step 5: Solve for x
    x = 59,974,259,288.71/282,762.22
  6. Step 6: Final answer
    x = 212,101.39

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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.