Home / 228,590.06-315,459.40-130,471.35

Finding the Fourth Proportional to 228,590.06, 315,459.40 and 130,471.35

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Solution

The fourth proportional to 228,590.06, 315,459.40 and 130,471.35 is: 180,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,590.06 : 315,459.40 = 130,471.35 : x
  2. Step 2: Convert to fraction form
    228,590.06/315,459.40 = 130,471.35/x
  3. Step 3: Cross multiply
    228,590.06x = 315,459.40 × 130,471.35
  4. Step 4: Simplify right side
    228,590.06x = 41,158,412,210.89
  5. Step 5: Solve for x
    x = 41,158,412,210.89/228,590.06
  6. Step 6: Final answer
    x = 180,053.38

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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.