Home / 282,430.77-390,007.62-210,686.24

Finding the Fourth Proportional to 282,430.77, 390,007.62 and 210,686.24

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Solution

The fourth proportional to 282,430.77, 390,007.62 and 210,686.24 is: 290,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,430.77 : 390,007.62 = 210,686.24 : x
  2. Step 2: Convert to fraction form
    282,430.77/390,007.62 = 210,686.24/x
  3. Step 3: Cross multiply
    282,430.77x = 390,007.62 × 210,686.24
  4. Step 4: Simplify right side
    282,430.77x = 82,169,237,079.11
  5. Step 5: Solve for x
    x = 82,169,237,079.11/282,430.77
  6. Step 6: Final answer
    x = 290,935.85

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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.