Home / 346,234.19-478,019.20-223,790.67

Finding the Fourth Proportional to 346,234.19, 478,019.20 and 223,790.67

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Solution

The fourth proportional to 346,234.19, 478,019.20 and 223,790.67 is: 308,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,234.19 : 478,019.20 = 223,790.67 : x
  2. Step 2: Convert to fraction form
    346,234.19/478,019.20 = 223,790.67/x
  3. Step 3: Cross multiply
    346,234.19x = 478,019.20 × 223,790.67
  4. Step 4: Simplify right side
    346,234.19x = 106,976,237,040.86
  5. Step 5: Solve for x
    x = 106,976,237,040.86/346,234.19
  6. Step 6: Final answer
    x = 308,970.75

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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.