Home / 280,551.36-387,037.53-167,308.50

Finding the Fourth Proportional to 280,551.36, 387,037.53 and 167,308.50

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Solution

The fourth proportional to 280,551.36, 387,037.53 and 167,308.50 is: 230,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,551.36 : 387,037.53 = 167,308.50 : x
  2. Step 2: Convert to fraction form
    280,551.36/387,037.53 = 167,308.50/x
  3. Step 3: Cross multiply
    280,551.36x = 387,037.53 × 167,308.50
  4. Step 4: Simplify right side
    280,551.36x = 64,754,668,588.01
  5. Step 5: Solve for x
    x = 64,754,668,588.01/280,551.36
  6. Step 6: Final answer
    x = 230,812.17

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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.