Home / 219,715.86-302,989.53-165,398.07

Finding the Fourth Proportional to 219,715.86, 302,989.53 and 165,398.07

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Solution

The fourth proportional to 219,715.86, 302,989.53 and 165,398.07 is: 228,084.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,715.86 : 302,989.53 = 165,398.07 : x
  2. Step 2: Convert to fraction form
    219,715.86/302,989.53 = 165,398.07/x
  3. Step 3: Cross multiply
    219,715.86x = 302,989.53 × 165,398.07
  4. Step 4: Simplify right side
    219,715.86x = 50,113,883,492.21
  5. Step 5: Solve for x
    x = 50,113,883,492.21/219,715.86
  6. Step 6: Final answer
    x = 228,084.96

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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.