Home / 282,840.36-390,316.53-210,566.40

Finding the Fourth Proportional to 282,840.36, 390,316.53 and 210,566.40

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Solution

The fourth proportional to 282,840.36, 390,316.53 and 210,566.40 is: 290,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,840.36 : 390,316.53 = 210,566.40 : x
  2. Step 2: Convert to fraction form
    282,840.36/390,316.53 = 210,566.40/x
  3. Step 3: Cross multiply
    282,840.36x = 390,316.53 × 210,566.40
  4. Step 4: Simplify right side
    282,840.36x = 82,187,546,582.59
  5. Step 5: Solve for x
    x = 82,187,546,582.59/282,840.36
  6. Step 6: Final answer
    x = 290,579.27

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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.