Home / 219,212.40-328,818.60-61,420.35

Finding the Fourth Proportional to 219,212.40, 328,818.60 and 61,420.35

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Solution

The fourth proportional to 219,212.40, 328,818.60 and 61,420.35 is: 92,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,212.40 : 328,818.60 = 61,420.35 : x
  2. Step 2: Convert to fraction form
    219,212.40/328,818.60 = 61,420.35/x
  3. Step 3: Cross multiply
    219,212.40x = 328,818.60 × 61,420.35
  4. Step 4: Simplify right side
    219,212.40x = 20,196,153,498.51
  5. Step 5: Solve for x
    x = 20,196,153,498.51/219,212.40
  6. Step 6: Final answer
    x = 92,130.53

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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.