Home / 280,688.68-387,609.06-180,261.64

Finding the Fourth Proportional to 280,688.68, 387,609.06 and 180,261.64

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Solution

The fourth proportional to 280,688.68, 387,609.06 and 180,261.64 is: 248,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,688.68 : 387,609.06 = 180,261.64 : x
  2. Step 2: Convert to fraction form
    280,688.68/387,609.06 = 180,261.64/x
  3. Step 3: Cross multiply
    280,688.68x = 387,609.06 × 180,261.64
  4. Step 4: Simplify right side
    280,688.68x = 69,871,044,834.46
  5. Step 5: Solve for x
    x = 69,871,044,834.46/280,688.68
  6. Step 6: Final answer
    x = 248,927.19

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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.