Home / 320,903.12-442,829.42-175,681.10

Finding the Fourth Proportional to 320,903.12, 442,829.42 and 175,681.10

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Solution

The fourth proportional to 320,903.12, 442,829.42 and 175,681.10 is: 242,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,903.12 : 442,829.42 = 175,681.10 : x
  2. Step 2: Convert to fraction form
    320,903.12/442,829.42 = 175,681.10/x
  3. Step 3: Cross multiply
    320,903.12x = 442,829.42 × 175,681.10
  4. Step 4: Simplify right side
    320,903.12x = 77,796,759,617.96
  5. Step 5: Solve for x
    x = 77,796,759,617.96/320,903.12
  6. Step 6: Final answer
    x = 242,430.67

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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.