Home / 454,395.12-681,130.92-188,300.40

Finding the Fourth Proportional to 454,395.12, 681,130.92 and 188,300.40

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Solution

The fourth proportional to 454,395.12, 681,130.92 and 188,300.40 is: 282,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,395.12 : 681,130.92 = 188,300.40 : x
  2. Step 2: Convert to fraction form
    454,395.12/681,130.92 = 188,300.40/x
  3. Step 3: Cross multiply
    454,395.12x = 681,130.92 × 188,300.40
  4. Step 4: Simplify right side
    454,395.12x = 128,257,224,688.37
  5. Step 5: Solve for x
    x = 128,257,224,688.37/454,395.12
  6. Step 6: Final answer
    x = 282,259.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.