Home / 374,768.76-517,430.36-221,856.14

Finding the Fourth Proportional to 374,768.76, 517,430.36 and 221,856.14

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Solution

The fourth proportional to 374,768.76, 517,430.36 and 221,856.14 is: 306,309.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,768.76 : 517,430.36 = 221,856.14 : x
  2. Step 2: Convert to fraction form
    374,768.76/517,430.36 = 221,856.14/x
  3. Step 3: Cross multiply
    374,768.76x = 517,430.36 × 221,856.14
  4. Step 4: Simplify right side
    374,768.76x = 114,795,102,388.41
  5. Step 5: Solve for x
    x = 114,795,102,388.41/374,768.76
  6. Step 6: Final answer
    x = 306,309.16

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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.