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Finding the Fourth Proportional to 219,417.70, 307,599.50 and 219,417.70

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Solution

The fourth proportional to 219,417.70, 307,599.50 and 219,417.70 is: 307,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,417.70 : 307,599.50 = 219,417.70 : x
  2. Step 2: Convert to fraction form
    219,417.70/307,599.50 = 219,417.70/x
  3. Step 3: Cross multiply
    219,417.70x = 307,599.50 × 219,417.70
  4. Step 4: Simplify right side
    219,417.70x = 67,492,774,811.15
  5. Step 5: Solve for x
    x = 67,492,774,811.15/219,417.70
  6. Step 6: Final answer
    x = 307,599.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.