Home / 282,727.86-390,154.08-155,402.34

Finding the Fourth Proportional to 282,727.86, 390,154.08 and 155,402.34

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Solution

The fourth proportional to 282,727.86, 390,154.08 and 155,402.34 is: 214,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,727.86 : 390,154.08 = 155,402.34 : x
  2. Step 2: Convert to fraction form
    282,727.86/390,154.08 = 155,402.34/x
  3. Step 3: Cross multiply
    282,727.86x = 390,154.08 × 155,402.34
  4. Step 4: Simplify right side
    282,727.86x = 60,630,855,041.78
  5. Step 5: Solve for x
    x = 60,630,855,041.78/282,727.86
  6. Step 6: Final answer
    x = 214,449.53

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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.