Home / 387,638.48-581,682.36-162,981.20

Finding the Fourth Proportional to 387,638.48, 581,682.36 and 162,981.20

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Solution

The fourth proportional to 387,638.48, 581,682.36 and 162,981.20 is: 244,566.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,638.48 : 581,682.36 = 162,981.20 : x
  2. Step 2: Convert to fraction form
    387,638.48/581,682.36 = 162,981.20/x
  3. Step 3: Cross multiply
    387,638.48x = 581,682.36 × 162,981.20
  4. Step 4: Simplify right side
    387,638.48x = 94,803,289,051.63
  5. Step 5: Solve for x
    x = 94,803,289,051.63/387,638.48
  6. Step 6: Final answer
    x = 244,566.25

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1.5x scale

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.