Home / 215,018.47-296,707.26-118,217.13

Finding the Fourth Proportional to 215,018.47, 296,707.26 and 118,217.13

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Solution

The fourth proportional to 215,018.47, 296,707.26 and 118,217.13 is: 163,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,018.47 : 296,707.26 = 118,217.13 : x
  2. Step 2: Convert to fraction form
    215,018.47/296,707.26 = 118,217.13/x
  3. Step 3: Cross multiply
    215,018.47x = 296,707.26 × 118,217.13
  4. Step 4: Simplify right side
    215,018.47x = 35,075,880,727.36
  5. Step 5: Solve for x
    x = 35,075,880,727.36/215,018.47
  6. Step 6: Final answer
    x = 163,129.62

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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.