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Finding the Fourth Proportional to 219,400.32, 302,772 and 118,798.56

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Solution

The fourth proportional to 219,400.32, 302,772 and 118,798.56 is: 163,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,400.32 : 302,772 = 118,798.56 : x
  2. Step 2: Convert to fraction form
    219,400.32/302,772 = 118,798.56/x
  3. Step 3: Cross multiply
    219,400.32x = 302,772 × 118,798.56
  4. Step 4: Simplify right side
    219,400.32x = 35,968,877,608.32
  5. Step 5: Solve for x
    x = 35,968,877,608.32/219,400.32
  6. Step 6: Final answer
    x = 163,941.77

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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.