Home / 208,848.36-288,207.63-118,221.51

Finding the Fourth Proportional to 208,848.36, 288,207.63 and 118,221.51

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Solution

The fourth proportional to 208,848.36, 288,207.63 and 118,221.51 is: 163,143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,848.36 : 288,207.63 = 118,221.51 : x
  2. Step 2: Convert to fraction form
    208,848.36/288,207.63 = 118,221.51/x
  3. Step 3: Cross multiply
    208,848.36x = 288,207.63 × 118,221.51
  4. Step 4: Simplify right side
    208,848.36x = 34,072,341,212.12
  5. Step 5: Solve for x
    x = 34,072,341,212.12/208,848.36
  6. Step 6: Final answer
    x = 163,143.93

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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.