Home / 212,216.57-292,730.80-130,558.77

Finding the Fourth Proportional to 212,216.57, 292,730.80 and 130,558.77

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Solution

The fourth proportional to 212,216.57, 292,730.80 and 130,558.77 is: 180,092.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,216.57 : 292,730.80 = 130,558.77 : x
  2. Step 2: Convert to fraction form
    212,216.57/292,730.80 = 130,558.77/x
  3. Step 3: Cross multiply
    212,216.57x = 292,730.80 × 130,558.77
  4. Step 4: Simplify right side
    212,216.57x = 38,218,574,985.07
  5. Step 5: Solve for x
    x = 38,218,574,985.07/212,216.57
  6. Step 6: Final answer
    x = 180,092.32

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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.