Home / 209,345.06-288,889.98-118,709.30

Finding the Fourth Proportional to 209,345.06, 288,889.98 and 118,709.30

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Solution

The fourth proportional to 209,345.06, 288,889.98 and 118,709.30 is: 163,815.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,345.06 : 288,889.98 = 118,709.30 : x
  2. Step 2: Convert to fraction form
    209,345.06/288,889.98 = 118,709.30/x
  3. Step 3: Cross multiply
    209,345.06x = 288,889.98 × 118,709.30
  4. Step 4: Simplify right side
    209,345.06x = 34,293,927,302.81
  5. Step 5: Solve for x
    x = 34,293,927,302.81/209,345.06
  6. Step 6: Final answer
    x = 163,815.32

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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.