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Finding the Fourth Proportional to 282,602.81, 389,987.37 and 155,275.67

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Solution

The fourth proportional to 282,602.81, 389,987.37 and 155,275.67 is: 214,277.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,602.81 : 389,987.37 = 155,275.67 : x
  2. Step 2: Convert to fraction form
    282,602.81/389,987.37 = 155,275.67/x
  3. Step 3: Cross multiply
    282,602.81x = 389,987.37 × 155,275.67
  4. Step 4: Simplify right side
    282,602.81x = 60,555,548,218.35
  5. Step 5: Solve for x
    x = 60,555,548,218.35/282,602.81
  6. Step 6: Final answer
    x = 214,277.94

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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.