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Finding the Fourth Proportional to 372,007.86, 513,384.13 and 228,740.22

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Solution

The fourth proportional to 372,007.86, 513,384.13 and 228,740.22 is: 315,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,007.86 : 513,384.13 = 228,740.22 : x
  2. Step 2: Convert to fraction form
    372,007.86/513,384.13 = 228,740.22/x
  3. Step 3: Cross multiply
    372,007.86x = 513,384.13 × 228,740.22
  4. Step 4: Simplify right side
    372,007.86x = 117,431,598,840.71
  5. Step 5: Solve for x
    x = 117,431,598,840.71/372,007.86
  6. Step 6: Final answer
    x = 315,669.67

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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.